/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import {
    HttpEvent,
    HttpHandler,
    HttpInterceptor,
    HttpRequest,
} from '@angular/common/http';
import { Observable } from 'rxjs';
import { Injectable } from '@angular/core';
import { CurrentUserService } from '@streampipes/shared-ui';

@Injectable()
export class HttpInterceptorProvider implements HttpInterceptor {
    constructor(private currentUserService: CurrentUserService) {}

    intercept(
        req: HttpRequest<any>,
        next: HttpHandler,
    ): Observable<HttpEvent<any>> {
        if (this.currentUserService.authToken$.getValue()) {
            const clonedReq = req.clone({
                headers: req.headers.set(
                    'Authorization',
                    'Bearer ' + this.currentUserService.authToken$.getValue(),
                ),
            });
            return next.handle(clonedReq);
        } else {
            return next.handle(req);
        }
    }
}
